kwaiken

[ kwahy-ken, kahy- ]

noun

, plural kwai·ken.

1. a kind of folding pocketknife.
2. a curved dagger formerly used by Japanese women in ceremonial suicide.

Word History and Origins

Origin of kwaiken¹

First recorded in 2010–15; from Japanese k(w)aiken, from Middle Chinese, equivalent to Chinese huái “bosom” + jiàn “sword”